<template>
  <!-- 注册页面的整体盒子 -->
  <div class="register-container">
    <!-- 注册的盒子 -->
    <div class="register-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <el-form :model="regForm" :rules="regFormRules" ref="regFormRef">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="regForm.username" placeholder="请输入用户名" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="regForm.password"
            type="password"
            placeholder="请输入密码"
            show-password
            prefix-icon="el-icon-lock"
          ></el-input>
        </el-form-item>
        <!-- 确认密码 -->
        <el-form-item prop="repassword">
          <el-input
            v-model="regForm.repassword"
            type="password"
            placeholder="请再次确认密码"
            show-password
            prefix-icon="el-icon-lock"
          ></el-input>
        </el-form-item>
        <!-- 注册按钮 -->
        <el-form-item>
          <el-button type="primary" @click="handleReg">注册</el-button>
          <el-link type="info" @click="$router.push('/login')">去登录</el-link>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { registerApi } from '@/api/register.js'

export default {
  name: 'Register',
  data() {
    // 自定义表单验证密码规则
    const validatePassWord = (rule, value, callback) => {
      if (value !== this.regForm.password) {
        callback(new Error('两次输入密码不一致!'))
      } else {
        callback()
      }
    }
    return {
      // 注册的表单对象
      regForm: {
        username: '',
        password: '',
        repassword: ''
      },
      // 注册的表单的验证规则对象
      regFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          { pattern: /^[a-z\d]{2,10}$/i, message: '用户名必须是2-10的字母数字', trigger: 'blur' }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
        ],
        repassword: [
          {
            required: true,
            message: '请输入验证密码',
            trigger: 'blur'
          },
          { pattern: /^\S{6,15}$/, message: '验证密码必须是6-15的非空字符', trigger: 'blur' },
          {
            // 自定义校验规则，验证密码一致性
            validator: validatePassWord,
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    // 注册兜底验证
    handleReg() {
      this.$refs.regFormRef.validate(async valid => {
        if (!valid) return
        const {
          data: { code, message }
        } = await registerApi(this.regForm)
        if (code === 0) {
          // 给提示成功
          this.$message.success(message)
          // 跳转登陆页
          this.$router.push('/login')
        } else {
          // 给失败提示
          this.$message.error(message)
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.register-container {
  background: url('~@/assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .register-box {
    width: 400px;
    height: 345px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 50px;
    box-sizing: border-box;

    .title-box {
      height: 60px;
      background: url('~@/assets/images/login_title.png') center no-repeat;
    }

    .el-button {
      width: 100%;
    }
  }
}
</style>
